Cell culture insert



FIG. 1 is an upper side perspective view of a cell culture insert, showing the new design;

FIG. 2 is a lower side perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a cross-sectional view thereof along line 9-9 in FIG. 3; and,

FIG. 10 is a cross-sectional view thereof along line 10-10 in FIG. 3. 

CLAIM The ornamental design for a cell culture insert, as shown and described. 